Chuckit! Fetch Medley Ball Set Dog ToysReady Set Fetch! Give your dog something to jump for. Your dog will love this grippable rubber ball set made just the right size to use with your Chuckit! Medium Ball Launcher, sold separately. Fetch Medley set includes three of our favorite balls: the Chuckit! Whistler Ball, Chuckit! Max Glow Rubber Ball & Chuckit! Rebounce Ball. Chuckit!